Home / 991,513.95-1,487,270.92-243,559.95

Finding the Fourth Proportional to 991,513.95, 1,487,270.92 and 243,559.95

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Solution

The fourth proportional to 991,513.95, 1,487,270.92 and 243,559.95 is: 365,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,513.95 : 1,487,270.92 = 243,559.95 : x
  2. Step 2: Convert to fraction form
    991,513.95/1,487,270.92 = 243,559.95/x
  3. Step 3: Cross multiply
    991,513.95x = 1,487,270.92 × 243,559.95
  4. Step 4: Simplify right side
    991,513.95x = 362,239,625,182.16
  5. Step 5: Solve for x
    x = 362,239,625,182.16/991,513.95
  6. Step 6: Final answer
    x = 365,339.92

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.